baber/WOPTO huggingface dataset:
Patent GB-2028577-A (GB)
Title: Electron multipliers
IPC: H01J43/18
Filed: 1979-07-24
Abstract: In an electron multiplier, the dark count rate is improved by making the active area of the first dynode commensurate with the area thereof upon which the electron stream impinges. The active area may be a strip of Be-Cu alloy activated using oxygen. Porous Al, evaporated in poor vacuum, lowers the emission in areas not required for multiplication. Photomultipliers and applications thereof are exemplified.
Patent GB-2035204-A (GB)
Title: Registered debossed decorative thermoset plastics laminates
IPC: B32B29/00
Filed: 1979-09-13
Abstract: By means of a press-plate having high and low areas, an assembly comprising a core of phenolic resin impregnated kraft paper sheet(s) having superimposed thereon transparent noble resin impregnated paper sheet(s) is consolidated by heat and pressure which results in those portions of the core corresponding to the high areas of the press-plate being consolidated to a greater degree and darker colour than the other portions. This colour variation when viewed through the surfacing sheets contributes to the decorative appearance of the laminates.
Patent GB-2058898-A (GB)
Title: Damp Proof Course
IPC: E04B1/64
Filed: 1979-09-14
Abstract: The invention relates to a method of inserting a damp-proof course into an existing wall of a building which comprises the insertion of an elongate sealable bag or envelope 1 and filling the same with a quick-setting waterproof material. The invention further relates to sealable bags or envelopes suitable for use in the establishment of a damp- proof course. <IMAGE>
Patent GB-2036155-A (GB)
Title: Road forms
IPC: E01C19/50
Filed: 1979-11-28
Abstract: A road form, for use in the construction of concrete road ways comprises an elongated metal member (1), and a cover member (11). The cover member is a plastics material and has two longitudinal flanges (12, 13) which are, parallel with one another and which intersect a longitudinal web (14) to form two sharp right-angle corners. The cover member is attached to the elongate metal member by clip portions (16). <IMAGE>
Patent GB-2046235-A (GB)
Title: Removing dissolved organic impurities from waste water
IPC: C02F1/52
Filed: 1980-01-25
Abstract: The invention concerns a process for the treatment of waste waters containing dissolved organic impurities wherein an alkali-humate- containing substance is added into the waste water, followed by the addition of a mineral acid and/or at least one salt of a two- and/or three-valent metal. The purified water and the mud obtained are separated by known techniques.
Patent GB-2042613-A (GB)
Title: Removing Railway Sleepers
IPC: E01B27/04
Filed: 1980-02-11
Abstract: Defective railway sleepers are removed in one piece by displacing the ballast adjacent both sides and the bottom of the sleeper by the insertion of scarifiers 53 to form a plurality of longitudinally spaced pockets underneath the sleeper; applying a downward force to the top of the sleeper causing the ballast material intermediate the pockets to flow longitudinally of the sleeper to lower the sleeper sufficiently to allow withdrawal from either end. <IMAGE>
Patent GB-2047041-A (GB)
Title: Digital still picture storage system
IPC: H04N7/26
Filed: 1980-03-04
Abstract: A video signal representing a still picture is sampled at a frequency of four times the sub-carrier frequency (4 x fsc), digitised 13 and stored 14 in real time. Subsequently, after a complete frame has been stored, the store is read at a slower speed, the output signals are digitally filtered 16 to reduce the number of samples by a factor of one-half, and the resulting signals are stored in a disk file 18. The digital filtering 16 is effected (Figure 7, not shown) by combining the samples of two adjacent lines (L1, L2) to produce the samples, for those respective lines, but reduced in number. <IMAGE>
Patent GB-2047815-A (GB)
Title: Actuation system for use on a gas turbine engine
IPC: F02C9/18
Filed: 1980-03-25
Abstract: Yoke 60 interconnect crankshanks 40 for conjoint rotation by actuator 50 via crank 56, the yoke moving circumferentially of the gas turbine. Crankshafts 40 may operate an annular slide valve 20 between inner and outer bypass ducts 18, 24 of a variable cycle gas turbine engine or rear variable area bypass injector chutes. <IMAGE>
Patent GB-2072480-A (GB)
Title: Method and apparatus for the salting of cheese curd
IPC: A01J25/00
Filed: 1980-03-28
Abstract: A method of salting curd in the manufacture of cheese, in which milled curd on a moving conveyor 10 is sprayed with a liquid consisting of whey and salt through spray nozzles 13 while the curd is being agitated to distribute the liquid evenly throughout the curd. The salted whey is recycled. The recycled whey-salt liquid is filtered in filters 26 to remove fats and cheese fines, re-salted in container 20 and heated in heat exchanger 31 before being sprayed on curd. At periodic intervals the whey-salt liquid is heated to pasteurizing temperature. <IMAGE>
Patent GB-2074412-A (GB)
Title: Infrared surveillance system
IPC: G01S3/784
Filed: 1980-04-23
Abstract: An optical system for infrared detection in the 3 to 14 micrometre region comprises a viewing aspheric corrector, a spherical mirror positioned to receive the light passed by said viewing aspheric corrector, an array of detector cells sufficient to provide high resolution and positioned to lie at the focal length of said optical system behind a narrow pass spectral filter, said detector cells being adapted to produce an electrical signal responsive to the infrared radiation detected thereby, and means for moving the system field of view in azimuth. The system may also include a multiplexer to scan the array of cells and to deliver their signals sequentially to an image display, and a cryogenic cooling system for cooling the filter and the cells. <IMAGE>
Patent GB-2058351-A (GB)
Title: Improvements in or relating to sonar systems
IPC: G01S15/42
Filed: 1980-09-04
Abstract: A sonar bearing determining system comprises a generator (15, 16) for radiating a sonar signal and a receiver for receiving echo signals. The receiver comprises an array of spaced receiving transducers (10) and a modulating and sampling arrangement (12, 17 or 41) for producing a combined signal. The combined signal is of the form of a repetitive sequential sample of each of the received signals modulated by a signal of frequency equal to the radiated sonar frequency but phase displaced relative thereto. A bearing determining device (20, 42) is arranged to determine the bearing of an object providing an echo in dependence upon a frequency component of the combined signal or in dependence upon the time displacement of the combined signal relative to a predetermined time value. <IMAGE>
Patent GB-2086825-A (GB)
Title: Improvements in or relating to feed conveyors
IPC: A01D89/00
Filed: 1980-11-04
Abstract: A pick-up conveyor for feeding a forage harvester or the like includes a frame (10), endless chains (18) extending around a roller (14) at the lower end and drive sprockets (20) at the upper end of the frame, a driving pulley (30) for driving the shaft (16) on which the sprockets (20) are located, transverse members (22) joining the chains and having sprung tines (24) thereon, and a plurality of longitudinal members (not shown) arranged to support material being conveyed while permitting relatively small, dense objects to pass through the conveyor. The spacing of the transverse slats (22) is selected so that heavy small objects picked up by the tines together with a harvested crop lying on the ground, will fall between the transverse slats whilst the harvested produce is moved rearwardly over the frame to be deposited onto a conveyor feeding an input to harvester or like. <IMAGE>
Patent GB-2087070-A (GB)
Title: Safety device
IPC: E05F15/00
Filed: 1980-11-05
Abstract: A pressure sensing device, particularly for attachment to the leading edge of a power-driven door 8 to sense the presence of an obstruction in the path Z of the closing door 8 and subsequently to activate an alarm, comprises a hollow flexible element 1 having a light source 2 and a light detector 3 spaced along its interior passageway 4, the flexible element being compressed upon striking an obstruction so as to interrupt the passage of light at least partially, which interruption is sensed by the detector 3. <IMAGE>
Patent GB-2069787-A (GB)
Title: Semiconductor switching device
IPC: H01L21/331
Filed: 1981-02-03
Abstract: A semiconductor switching device comprises a main switching element, for example, a darlington transistor, and a speed up transistor. A current amplification factor of the speed up transistor is established less than 1 to dissipate the stored electric charge of the main switching element. <IMAGE>
Patent GB-2069638-A (GB)
Title: Master cylinder and servo booster assemblies for vehicle braking systems
IPC: B60T13/24
Filed: 1981-02-06
Abstract: In a master cylinder and servo booster assembly for a vehicle braking system a mounting plate (6) is connected to the rear end of a vacuum operated servo booster (3). A tubular extension (11) integral with the mounting plate (6) extends sealably through the movable wall (12) of the booster substantially to relieve the booster housing (4) of braking reaction forces. Circumferentially spaced axially extending slots (21) divide the extension into axially extending arms (20) which are secured to the master cylinder housing (2) at their free ends by the engagement of a radially extending projection (27) on the end of each arm (20) with an annular recess (26) in the outer surface of the rear end of the master cylinder housing (2). A sleeve (28) integral with the front shell of the booster housing (4) encircles the ends of the arms (20) and holds the arm ends in interlocking engagement with the master cylinder housing (2). Alternatively, Fig. 2, projections on the master cylinder housing and recesses on the ends of the arms may be provided to secure the arms to the master cylinder housing. <IMAGE>
Patent GB-2078226-A (GB)
Title: Flame retardant mixture and resinous compositions including the mixture
IPC: C07F9/12
Filed: 1981-02-20
Abstract: A flame retardant composition for resinous compositions, especially for mixtures of polyphenylene ethers and styrene resins, comprises a mixture of triaryl phosphates including at least one such phosphate wherein 1 or 2 of its 3 aryl groups are mesityl groups and its remaining group or groups are independently selected from phenyl and xylyl groups. In the resinous composition, the flame retardancy of the mixture per unit weight of phosphorus is greater than that of either triphenyl phosphate (TPP) or trimesityl phosphate (TMP) per se. <IMAGE>
Patent GB-2073603-A (GB)
Title: Improvements in handling cement
IPC: B28C9/00
Filed: 1981-04-03
Abstract: Bagged cement is loaded onto a hopper (9) and feeds into cutter means (7) which comminutes the fabric of the cement bags. The cement and bag fragments are mixed with water in a mixer unit (2) and the mixture is pumped by pump (3) to a point of use, for example a pack in an underground mine. <IMAGE>
Patent GB-2078718-A (GB)
Title: Preparation of p-hydroxyphenyl Acetic Acid
IPC: C07C51/377
Filed: 1981-05-01
Abstract: The preparation of p- hydroxyphenylacetic acid by reducing p-hydroxymandelic acid with a stannous salt is described. The product is a valuable intermediate for the preparation of the  beta -adrenergic blocking agent atenolol.
Patent GB-2103552-A (GB)
Title: Apparatus for use in supporting a wheel during tyre repair or replacement
Inventor: MASTERS VERONICA ANN DIANE
IPC: B60C25/00
Filed: 1981-08-11
Abstract: A set of at least three elongate spacer members (22) is provided to enable a first wheel (20) to be used in supporting a second wheel (2) during repair or replacement of its tyre (4). Each spacer member is threaded at both ends, and the threaded ends of the spacer members are passed through the holes in the wheels (2, 20) normally employed for mounting the wheels on a vehicle and are secured by nuts e.g. (28). The spacer members are such that they space the wheels (2, 20) vertically apart by a distance that allows the tyre of the wheel (2) to be forced downwardly sufficiently for repair or replacement. The spacer members (22) may be solid or hollow, and may be provided with grooves (34) for location of a tie or clip for securing the members together when not in use. <IMAGE>
Patent GB-2087220-A (GB)
Title: Device for adjusting the opening of the visors in crash helmets for motorcyclists and the like
IPC: A42B3/22
Filed: 1981-11-02
Abstract: The device comprises, at the hinging ends of the visor (1) to the helmet, an engagement member (3) rotatably and slidingly associated, against the biassing of a leaf spring (11) to the coupling pin (4) of the visor to the helmet, and a visor locating arm member (7) effective to be movably engaged in housing seats (10) as integrally formed with the helmet. <IMAGE>
Patent GB-2109246-A (GB)
Title: Anti-pollution mask
Inventor: CHAN HUU SHYN
IPC: A62B18/02
Filed: 1981-11-12
Abstract: An anti-pollution mask 30 is mountable on a person's face to cover the nose and mouth and comprises an air-purifying mechanism in series with a gas compressor 27 also mounted on the mask causing polluted air to flow into and through the air-purifying mechanism and such that purified air is discharged on the breathing side of the face mask at a pressure elevated to slightly greater than atmospheric but sufficiently low as to not injure lung tissues nor inhibit exhaling carbon dioxide by the person there being a discharge valve 30-c through which excess gas and is discharged. <IMAGE>
Patent GB-2113637-A (GB)
Title: A device for clamping to a sheet of flexible material
Inventor: BROWN THOMAS WILLIAM
IPC: F16B5/06
Filed: 1982-01-27
Abstract: A device, such as a sail clew, which can be fixed to a sheet or piece of flexible material 23, comprising an outer member 11 having an end portion 12 provided with a hole or holes 13 or with a recess for receiving the member to be connected to the sheet material 23 and having opposed limb portions 14 between which is received a clamping member 16 having a portion 17 and a portion 18, at least one of the portions 17, 18 being provided with a toothed strip 21 which when the limb portions 14 are forced towards each other penetrate through the sheet material 23 and into the opposed portion 18. <IMAGE>
Patent GB-2095181-A (GB)
Title: Character selection in type wheel printer
IPC: B41J7/48
Filed: 1982-01-29
Abstract: In order to select types (201) on each type wheel of a set, (as shown each set comprises two wheels 2a, 2b), each wheel being associated with selector pawls (4a,4b) operable by a single electromagnet (5), a driver (6) firstly moves one pawl (4b) for the set into operative position to back the associated type wheels (2b), the into operative position to lock the associated type wheel (2b), the wheel in selected position. Then the driver releases the paw (4b) and associated wheel (2b) so that further actuation of the electromagnet selects the type on that wheel. More than two type wheels may be provided per set, in which case they are released in turn for selection by plural drivers. <IMAGE>
Patent GB-2092910-A (GB)
Title: Filter for removing particulate material from gases
IPC: B01D46/04
Filed: 1982-02-11
Abstract: Particle-laden gas passes from an inlet duct through respective inlets 14 to respective deceleration chambers 13, and thence to respective filter units 10 where the entrained particles are removed by filter bags 12. The deceleration chambers 13 communicate with a purge manifold 19 through respective outlets 20 so that periodically the bags 12 in each chamber 13 can be subjected to a reverse gas flow to purge the filtered-out particles therefrom. The inlets 14 are disposed around an axis 15 in a common plane perpendicular to the latter, and are closed off selectively by means of a baffle 16 which rotates about the axis 15 and which has a portion 17 disposed parallel to the aforesaid common plane. The outlets 20 are similarly disposed around an axis 21 and are opened successively by a baffle 22 which rotates around the axis 21. The baffles 16 and 22 are rotated in synchronism such that at any one time the baffle 22 opens the outlet 20 of the particular deceleration chamber 13 whose inlet 14 is closed off by the baffle 16. <IMAGE>
Patent GB-2114474-A (GB)
Title: Forging steel blanks
Inventor: KNAGGS MICHAEL
IPC: B21K1/08
Filed: 1982-02-12
Abstract: A method of manufacturing forged steel blanks from which combined web and pin crank throws can be produced comprises the steps of flattening a forged steel annulus, spreading the major sides of the flattened annulus over a mandrel to give a thickness equal to or approaching that required for the webs of the throw product, sectioning the flattened annulus to produce at least two substantially "U"-shaped workpieces and forging one or both of said workpieces to produce a blank or blanks having two substantially ovaloid webs separated by a pin.
Patent GB-2093120-A (GB)
Title: Temperature responsive air induction apparatus
IPC: F02M31/06
Filed: 1982-02-15
Abstract: The temperature of air flow into a carburettor is controlled by a flap (4), Fig. 1 (not shown) to meter the amount of heated air which is mixed with cold air, the control thereof being by a temperature sensitive vacuum control element (6) and in order to prevent icing under full throttle low vacuum conditions a bimetal element 23 is arranged edge-on in the intake air flow path to prevent complete reclosure of the flap (4) for less than a predetermined intake air temperature. The bimetal element may be arranged upstream (Fig. 2) or downstream (not shown) of the flap (4) and may be formed so as to have a snap action at the predetermined temperature, Fig. 4 (not shown). <IMAGE>
Patent GB-2096383-A (GB)
Title: Juke box
IPC: G11B27/26
Filed: 1982-04-01
Abstract: A selected one of a plurality of recordings on a video cassette is played by a video tape player 1 in response to receipt of a coin or token by a coin mechanism 4 and selection of a code corresponding to the appropriate recording by depressing code buttons 13 followed by a select button 15. In order to access the starting position of the selected recording a tape drive controller 18 compares the actual position of the tape as determined from markers on the tape with the required position, and then drives the tape to the required position. The audio signal is supplied to a loudspeaker 2 and the video signal is supplied to a video screen 3. <IMAGE>
Patent GB-2098648-A (GB)
Title: Vehicle sliding door
IPC: E05D15/10
Filed: 1982-05-11
Abstract: A suspension system for a sliding plug door for a vehicle comprises a carriage and an external rail 2 which which has, towards its forward end, a recurved portion c and an intermediate portion b with a curve of larger radius. The carriage has a suspension roller 3 and guide rollers 4, 5. <IMAGE>
Patent GB-2100205-A (GB)
Title: A supporting head for exterior mirrors of lorries
IPC: B60R1/06
Filed: 1982-05-13
Abstract: A supporting head for exterior mirrors comprises two clamping pieces (2, 3) braced by a tightening bolt (4). Each clamping piece (2, 3) has a v-shaped clamping jaw (11, 12) into which inserts (26, 30) may be positioned, to grip smaller supporting rods. The inserts (26, 30) are injection moulded from plastics in one piece with the clamping pieces (2, 3) or with the clamping jaws (11, 12). The inserts (26, 30) are joined to the relevant clamping pieces by thin bars (29) to be separated manually if not required. <IMAGE>
Patent GB-2121680-A (GB)
Title: Meat stand
Inventor: SHAW ROBERT WILLIAM
IPC: A47J43/18
Filed: 1982-06-17
Abstract: A stand (1) for gripping meat during carving comprises a base (2) with two spaced-apart end walls (3A, 3B) supporting two gripping bars (4) each having a row of gripping projections (7). End portions of the bars (4) are positively and selectively locatable in each of a plurality of seats (10A, 10B) in the upper edges (9) of the walls (3A, 3B) to vary the mutual spacing and inclination of the bars to accommodate joints of different shapes and sizes. A central support bar (5) is locatable in a number of vertically-spaced positions beneath the gripping bars (4) to provide further support for the meat. <IMAGE>
Patent GB-2114827-A (GB)
Title: A switching arrangement for starting an internal-combustion engine by means of several electric starting motors
Inventor: SIEBER BERND
IPC: F02N11/00
Filed: 1982-12-13
Abstract: The starting motors 5, 25 are connected in parallel and have respective two-stage meshing devices actuated by electromagnets 4, 24, means being provided to ensure that the second starting stage is switched on to energise the motors at full power only after the pinions 6, 26 of all the starting motors 5, 25 have become fully meshed with the I.C. engine. On closing a switch 2 holding windings 4.1, 24.1 or electromagnets 4, 24 and operating windings 3.2, 23.2 of relays 3, 23 are energized. Switches 3.1, 23.1 are thereby closed so that motors 5, 25 are connected in series with pull-in windings 4.2, 24.2 of electromagnets 4, 24 respectively. The electromagnets thus move pinions 6, 26 into mesh with gear ring 10 and urge switches 4.3, 24.3 to a closed position, power 9, 29 preventing closure of these switches at this stage. Series connected switches 7, 27 are closed on full meshing of pinions 6, 26 respectively with ring 10 so that operating windings 8, 28 are only energised to release power 9, 29 when both pinions 6, 26 are fully meshed. Switches 4.3, 24.3 close on release of power 9, 29 to short out pull-in windings 4.2, 24.2 and thus energise motors 5, 25 at full power. Switches 7, 27 may be mechanical limit switches or solid state thyrators. <IMAGE>
Patent GB-2115075-A (GB)
Title: Concrete structure e.g. a rotor blade
Inventor: SLEMMONS ARTHUR JOHN
IPC: F01D5/12
Filed: 1983-01-27
Abstract: A concrete mix containing fibres is sprayed onto a surface 12 of a female mould 10 to form a thin layer 13. Preferably, a male mould 14 is then inserted over the layer of wet concrete and a thin layer 15 of concrete is sprayed onto the male mould 14 to form a beam or spar which is integral with the layer 13 applied to the female mould 10. A monolithic concrete element is thus produced. Another such element is similarly formed and the two elements are cemented together to form a tubular structure, e.g. a rotor blade for a wind turbine. Reinforcement rods may be incorporated, e.g. in the two beams or spars, and placed in tension to place the structure in compression. <IMAGE>
Patent GB-2117304-A (GB)
Title: Safety razors
Inventor: ISHIDA MINORI
IPC: B26B21/22
Filed: 1983-02-10
Abstract: A safety razor particularly suited for dry shaving has three or more blades 23 the cutting edges 23a of which are parallel and inclined at an acute angle to the shaving direction. The blades which are relatively small and identical to one another are mounted in a row along an elongate holder carried by a handle 21 extending in the shaving direction. <IMAGE>
Patent GB-2120136-A (GB)
Title: Method of forming a cladding unit for a building
Inventor: WALKER NIGEL ANTHONY
IPC: E04F13/12
Filed: 1983-03-09
Abstract: A corner unit for steel cladding for a building, for use where the corrugations in the cladding will extend horizontally on the building, is formed from a sheet of the cladding by cutting a series of apertures (1, 3) across the corrugations to permit the sheet to be bent to the desired angle, welding adjacent edges of the apertures together, coating the welded corner unit with a heat curable plastics coating material, and heating the corner unit to cure the coating. To ensure that the corner unit does not corrode more readily as a result of the bending and welding operation, a layer of corrosion resistant metal, preferably zinc or cadmium, is plated on to the welded corner unit before the plastics coating material is applied. The plating is preferably electrolytic. <IMAGE>